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Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers

The combination of photochromic and nonlinear optical (NLO) properties of azobenzene-functionalized self-assembled monolayers (SAMs) constitutes an intriguing step towards novel photonic and optoelectronic devices. By utilizing the second-order NLO process of second harmonic generation (SHG), suppor...

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Hauptverfasser: Schulze, Michael (VerfasserIn) , Utecht, Manuel (VerfasserIn) , Moldt, Thomas (VerfasserIn) , Przyrembel, Daniel (VerfasserIn) , Gahl, Cornelius (VerfasserIn) , Weinelt, Martin (VerfasserIn) , Saalfrank, Peter (VerfasserIn) , Tegeder, Petra (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 18 June 2015
In: Physical chemistry, chemical physics
Year: 2015, Jahrgang: 17, Heft: 27, Pages: 18079-18086
ISSN:1463-9084
DOI:10.1039/C5CP03093E
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/C5CP03093E
Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2015/cp/c5cp03093e
Volltext
Verfasserangaben:Michael Schulze, Manuel Utecht, Thomas Moldt, Daniel Przyrembel, Cornelius Gahl, Martin Weinelt, Peter Saalfrank and Petra Tegeder
Beschreibung
Zusammenfassung:The combination of photochromic and nonlinear optical (NLO) properties of azobenzene-functionalized self-assembled monolayers (SAMs) constitutes an intriguing step towards novel photonic and optoelectronic devices. By utilizing the second-order NLO process of second harmonic generation (SHG), supported by density-functional theory and correlated wave function method calculations, we demonstrate that the photochromic interface provides the necessary prerequisites en route towards possible future technical applications: we find a high NLO contrast on the order of 16% between the switching states. These are furthermore accessible reversibly and with high efficiencies in terms of cross sections on the order of 10−18 cm2 for both photoisomerization reactions, i.e., drivable by means of low-power LED light sources. Finally, both photostationary states (PSSs) are thermally stable at ambient conditions.
Beschreibung:Gesehen am 20.07.2020
Beschreibung:Online Resource
ISSN:1463-9084
DOI:10.1039/C5CP03093E

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